Stereoscopic picture device



Feb. 13, 1940. M .DZ L 2,190,516

STEREOSCOPIC PICTURE DEVICE Filed Dec. 31, 1935 2 Sheets-Sheet 1 INVENTOR Feb. 13, 1940. M, M .DZAL 2,190,516

STEREOSCOPIC PICTUREDEVICE Filed Dec. 31, 1935 2 Sheets-Sheet 2 4,: Fly /2 34 INVENTOR Patented Feb. 13,1940

lame,

. sTEREos'ooPIo'rrornnnmivlon I I II I MiltoniMl ldza l situates,- li a I, Application-December '31, 1935, Serial No. 56,875.

" mass.(01.12p

Thisinvention relates to a stereoscopicpicture device thatwill provide a stereoscopic moving section of a' picture againstfa stationary 'sterem' scopic', background, and atj the same time {also provides astereoscopic eye-piece to view said pic-.'

ture; thev stereoscopic lenses of the said 'eye piece being moveable in relationto each otherin such a manner thatthe variable prismatic'efiectthus. produced will cause the right and "leftviews of the stereoscopic pictureto ap'parentlym'ove closer together. or farther apart.

'It'will be, seen that when the left.

views of the stereoscopic picture apparently move converge in order to properly see the pictures as one and, when the right and left viewsappar ently separateto a greater distance; the eyes of the beholder must diverge the required. amount; 1

Y The mechanical" stereoscopicpicturesi'ale interchangeable to suit various fineness or dullness; of perception. The purpose of the pictures] being to hold the observers attentionby'providing all of the various elements ofkvisual stimulation (light, form, color, depth perception, and inof-fy tion) and -.at thesame time cause theeye's'. to converge or "diverge an unusualamount in order to stimulate the functional muscles atfthejflwill T andjcontrolof theo'perator. I I a I It will be noted that what is known as-macular'" stimulation ,is provided by the sm'a'llmovef i'ng'section of the pictures, while peripheral I stimulation isfprovided';byv the stationaryfpart, of pictureswe'epingiover the periphery of the retinav as theeye follows the moving section.

To attainthese and other ends"'I provide a stereoscopic picture embodying cutoutportions placed in'corresponding positions of theright and. left. views thereof, a means of placing these cutout: sections in motioni'again'st the stationary stereoscopic background in such a manner as to impart the appearance of animation to said sections." I alsoprovidea variable prismatic-effect I stereoscope through which to view the pictures and. a conventional type table stand upon which the'picture' and the stereoscopeare mounted.

With the above and other objects in view, the

invention consists in the construction, combina-.

tion and arrangements of parts hereinafter'fully described and claimed and illustrated in the accompanying drawings, wherein:

Figural is a fron view of one construction of my arrangementwith a portion thereof taken in section.

Figure 2 is a sectional end view of an optional construction shown in Figure, 11 whereby-then ,made visible alternately tosth e right. and then N whereby the lenses can be drawn togetheror Thegear l is attached to the shaft 30 which is.

.- terminates in the arm 2.

moving sections of the picture may be held in-a constant vertical position while in motion. I

Figure 13 is a sectional endqview of the contarget. h I I I f Figure 5 islanother attachable member of, a similar type. I a I 't Figure G' lS a further attachablemember adapt ed to extend'across two crank arms laterally of thedeviceqf 3 "Figure 7 isla further attachable member. I FigureB is a front view of a stereoscopic pic-' ture incorporating my construction,

FigureQisa front view of a modified form of. stereoscopic picture incorporating the structure wherein th'em'oving part of the picture may be to the left eye of the observer.

{Figure 10 is a front vie of a further type of.

" structure in which themember shown in Figure" 7 is employed. I

. Figure 11 is a front view of the cons'truction shownin section'in Figure 2. 2'5

' Figure l2 'is a view showing the device mount ed on'atable stand. g

vFigure 13 is a view of the stereoscope taken from *the';front showing the lever. arrangement 30 farther apart. I

Figure 14 is'a top view of an opticalconstruc tion of the'stereoscope showing the lever arrangementmounted upon the top of the stereoscope. I i U I have .used the character I in Figures 1 and 3jto designate a gear upon which a crank 2 is mounted. ,A worm gear? is'attach'ed to the shaftr l which is suitably journalled within the brackets 5. The character G represents the ms ing or housing member for the unit; The chare acter 8 represents the connection to a motor for driving the unit which can mesh with a suitable furth eIQ gear. la. The character 9representsa,

thumbpiece for initiating or'starting the action if such is desired.

The character 22 represents a small circular cut out picture section attached to the arm 2.

suitably jour'nalled within the casing and which I Figure 5 shows the small square unit 23 which can be attached to the crank arm and Figure 6 showsfthe rectan- 3 .gular section which can be usedto extend laterallyacroSs the unit and wherein thesm'all dots g arms by means of the extending pins 24c. 'I'he character 25 represents'an arm of a figure as 24a will appear in each opening such as 24?). The members 24 are connected to the crank shown in Figure 10 holding a ball such as 25a and the arm 25 is attached to a suitable pin 2517 which passes centrally through the gear I instead of the shaft and canbe journalled in the same manner.

In a further modification, as shown in Figure 2 the character It! represents a free running pinion gearmounted on a shaft l3. The character I 2 indicates a lower crank shaft and the; character l5 an upper crank shaft which are he attached to the other gears II and 14. character 20 represents the rear face of the housing and 18 the front face. The character 57! indicates a. picture section-which is attached to the lower upper cranks lid of the modification shown in Figure 11 and which is a square section as shown by ..the.. dotted figures thereof...-

Figure 8 showsfthelunit assembled having the furtherpicture portionj 25 upon which "is imprinted the picture of a' clownjZta and thecircles 26b. As shown, the target 22 revolves within the opening 241) forjthe necessary purpose.

Figure 9 illustrates .a modification wherein.

there are two circles on the face. 21, which imprinted circles are indicated by the character.

211 a. The circleszla, however, are cut intoseinicircles leavingflth e open semi-circular formations 2'lb and 210. In this form of structure, the move ing target is permitted to be .visible alternately to the right eye and then tothe left eye. This is for the purpose. of encouraging'visi'on. in. the

j poorer or amblyopic eye which faculty is stimutor dial. A a From the foregoing description with special lated by the. appearance. of cneobject and then another. f

In this'forni of structure, vthe'target 22 can. be employed. As explained, Figure 10 illustrates. aform of the devicewhereinthe clown 28ais" imprinted on the face 28 .and-Whereinjthe, pin 25?) (see Figure 7) extends" through the .gear I Inediallythereon thus producing rotation ofthe arm. Figurell shows a front face 29 With'the two openings 24d. and. behind. which are attached r the square members i? whichareattached as.

shown in Figure 2. The synchronous rotation of the arms ,lia"through .the' gear arrangement Will maintainthe arrow or vertical figure 29a. in vertical position throughout the operation there:

of. I H

iThe..characteri {3! represents .a. stereoscope havingthe pivoted indicator handle ,32 and 34 are pivoted arms attached to the lens frames.

M and 32 are stereoscope lenses... The table 1 stand is represented by the character 36 andthe characters 3?,.3.3and. ltl,are thumbscrews on the arms The character can an eye hole member of the stereoscope and 44 and. 45 are line. The character 33. represents an indicareference being hadto Figures 1 to 11 inclusive it will be seen that I have provided a :device" which has many advantages. This device will present all the elements of vision to the'eyeof the observer in controllable quantities at the will of the operator and will stimulate the visual acuteness by using objects of different sizes as moving targets such as 22, 23, 2401- in conjunction with various stereoscope backgrounds visible therewith and the smaller the greater acuity required.

Depth erception is stimulatedby thefact that the aforementioned backgrounds embody a depth ,stereogram namely, the circles printed thereon asshown in Figure 8. This gives the appearance to the observer of looking-down through abasket or similar object and the movable target will the test object p t 10 appearitorbe at the bottom. or at the far end I of thebasket. Inasmuch-as depth perception is gained largely through the marginal part .ofthe retina, the depth becomes more quickly apparent due to the fact that the. central fields-or fixationpointsoffboth eyesarefixed upon the small.

movingtarget in theicenter.

are interchangeable; keeps the observers attention ,refreshed. ."The fusion ability is Very similar tofthe depth perception. When the depthof the ,basket,-,is perceived, it Q is evident. that" fusion has been obtained. Asa result, all of these-'facr:

tors in combination provide the ma mum ocular I response] v v As shown in Figure 1; the stereoscopic effect is obtained through two-openings 2gb which is shownjjwith ,the' picture. imprinted thereon; in Figure .8. The various other combinations are;

readily perceived through the above description with "the? attachments being provided ."for" the necessarypur'poses...

' It should be understood that theidrawingsare j merely jillustrative and do, not .giveexactpropormembers in conjunction with one another. Fur,-

. thermore, the drawings are illustrative of a preferred 'constructi'on, it being in'yexpectation that various changes and modifications may be made my. invention;

witl'ib'ut.departing from the spirit. 'and scope: of

I am aware that 'p-ri'or to, this invention, Ihave ctui eje'mbbdying .late'rally spaced aperturesthe ein through which. movable sections of teqeived Patent n mber aooibza'on estereosaid .picture maybe viewedf I Itherefore,.do not now cnim'such. .a combination broadly, but I claims. t

A stereoscopic picture. device comprising a stereoscopic, picturehaving a. left hand and a 1 rightthajnd semicircular opening, aipairf of targets, easier each opening, eccentrically rotatable'b ehind said openings and having their centers o'frotation upon the center of the straight 1' portions of said'semicircular openings,said semicircularopenings adapted to provide visibility of said. target alternately to the left and right eye ii-r bserver. 

